Sizes M6 x 1 thru M24 x 1.5 + 3. 20 taps, 20 adjustable SAE dies, two die stocksadapters.Twotapwrenchesandonescrewdriver.SAE SetNoMetric Set YesPieces (qty.) 45Dies (qty.) 20Taps (qty.) 20Material Type Tungsten Alloy SteelAdditional Product Specs* Heat Treated No Metric Set YesPieces (qty.) 45Dies (qty.) 20Taps (qty.) 20Material Type Tungsten Alloy SteelAdditional Product Specs* Heat Treated